Ice-pick.



J. HUTGHINSON.

ICE PICK.

APPLICATION FILED JUNE 1B, 1913.

1,080,220. Patented Dec.1913.

WITNESSES NV NT R Allorney COLUMBIA PLANOGRAPH C0., WA$HIN c.

TINTTED STATES PATENT OFFIQE.

J OB HUTCHINSON, OF LONG- ISLAND CITY, NEW YORK, ASSIGNOR T0 NATIONAL 4 INDICATOR COMPANY, A CORPORATION OF NEW YORK.

ICE-PICK.

Specification of Letters Patent.

Patented Dec. 2, 1913.

To all whom it may concern:

Be it known that I, Jon HU'rornNsoN, a citizen of the United States, residing at Long Island City, in the county of Queens and State of New York, have invented new and useful Improvements in Ice-Picks, of which the following is a specification.

This invention relates to an improvement in ice picks in which an ice pick is operated by a sliding weight.

One object of the invention is to provide an ice pick adapted to be held in one hand and a percussive blow effected without danger of injury to the other hand which may be holding the ice or likelihood of causing damage to the lining of an ice box or other receptacle.

Another object is to provide a percussive ice pick in which there is no chance that the hand or fingers of the operator may in any waybe pinched'between the moving parts of the pick.

A further object is to provide a percussive ice pick in which the contact surfaces will be constantly changed and hence no damage done and the life of the article materially lengthened.

The invention consists in a construction of novel arrangement of parts illustrated, in the accompanying drawings 7 and described and claimed in the following specification and claims.

In the drawings :Figure 1 is a face view of the ice pick; Fig. 2 is a longitudinal sectional view of the weight and sliding connection, with the shank broken away; Fig. 3 is a section similar to Fig. 2 showing a modification of the sliding connection.

1 represents a main shank of bar metal with the upper end formed with a rounded handle portion 2 and opening 3 by which the article may be suspended when not in use. The lower end is shown provided with the knife edge 4:. A slot 5 is formed longitudinally of the shank 1, said opening 5 being as long as may be desired, but should be only wide enough to allow free movement of the weight connection. Extending through the slot 5 and on either side of the shank is a pin 6 upon which hemispherical weights or halves of a split ball 7 are mounted. At the central part of the pin 6 is a shouldered portion 8 so formed that it has a sliding engagement with the slot 5 and extends along the length of the pin for a distance greater than the thickness of the shank 1. This is done to prevent any binding of the shank when the split ball weights 7 are fastened on either end of the pin 6.

The shank 1 is of rigid bar metal and cannot become distorted or bent either by ordinary use or mistreatment. It is often desirable to hold a piece of ice in the hand and use the ice pick with the hammer. In this event it is necessary that the shank be rigid so that no bending may be possible, such as would cause binding on the ball weight. The weights 7 are halves of a split ball mounted on either side of the shank 1 so as to practically form a ball. The outer surfaces of the halves are smooth and so finished as to make a comfortable grip for the hand in operating the pick. The inner faces of the split ball are fiat and smooth, so that as the ball is rotated about its horizontal axis or moved along the shank at no time will it be possible for the two fiat faces of the halved balls to bind on the shank.

In Fig. 2 I have shown a method of fastening the weights 7 to the connecting pin 6 in which the split ball parts are formed with holes drilled through their centers and the pin 6 riveted at either end. The riveted heads 10 are contained within a countersunk or recessed opening 11 in the outer surface thereof.

In Fig. 3 I have shown the modification of the fastening illustrated in Fig. 2 in which the holes 9 extend only a portion of the way through the weights 7. These holes have been threaded to engage threads 12 on the pin 6. It will be observed that the shoulder 8 prevents binding on the shank 1 when the weights 7 are screwed or riveted on the connecting pin 6.

The ice pick is operated by manually sliding the weight 7 in the slot 5 and bringing the weight downward to the end of the slot. In this manner a number of percussive blows may be brought by the pick without the removal of the point of the pick from the ice, thus avoiding wasteful shattering and uneven cleavage of the ice.

It will be seen that the hemispheres form a convenient and comfbrtable grip for the hand when the pick is in use. The fact thatthe weight is free to turn on its horizontal axis makes it possible for the blows resultant of the contact of the base of the slot 5 and the pin 6 to be distributed over the entire surface of the shouldered portion 8 of the pin. Furthermore, by the construction described above it will be seen that it is impossible to harm the hand of the operator between the weight and any abutment such as is to be found in most forms of percussive ice picks.

Changes in the shape of the knife or point of the pick, the shape of the handle or the head or of the Weight may be made without altering or departing from the scope of the invention.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States, is

1. An ice pick comprising a shank of rigid bar metal provided with a longitudinally extending slot, a Weight having a part disposed upon each side of said shank but spaced therefrom, and a connecting piece extending through said slot and provided with means to space said parts.

2. An ice pick comprising a shank of rigid bar metal, provided with a longitudinally extending slot, a weight having a part disposed upon each side of said shank, and a connection between said weight parts slidably mounted within said slotted shank and shouldered between the parts of the weight to make the distance between the parts greater than the thickness of the shank.

3. An ice pick comprising a shank of rigid bar metal having oppositely facing plane surfaces and provided with a longitudinally extending slot, a divided weight having a part disposed upon each side of said shank, each part formed with a flat inner face to engage one of said surfaces, and a connection between said parts slidably mounted in said slotted shank.

4. An ice pick comprising a shank of rigid bar metal provided with a longitudinally extending slot, a halved ball weight having a half disposed upon each side of said shank, and a shouldered connection riveted to each half and slidably mounted within said slotted shank. V

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOB HUTCHINSON.

WVitnesses:

A. B. TEN EYoK,

R. RANDEL \VANGEMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of .latents,

Washington, D. 0. 

